Graphical Firing Scale

Model / MPN: 8262148 | NSN: 1220-00-335-4979

A device designed in the form of a slide rule, having one or more scales of varying ranges, on either surface, and a plastic cursor with a matte to receive pencil markings of range correction. It is used with various types of ground and sky-sweeper weapons to determine quadrant elevation, angle of sight, or drift, and to calculate the trajectory of a projectile in relation to a target. It may contain scales for yards to meters conversion and gage points which are used in conjunction with the cursor and range scale to convert data given in meters to yards. Scales may be in mils for determining high angle fire, time of flight, deflection shift, and the like.

Product Details

NATO Stock Number

1220-00-335-4979

Sold in multiples of

DEMIL

General Description

Rule no. 1 single-face type, rule no. 2 double-face type; wooden body; w/cursion, plastic; scale data, scales graduated in mils, 2 to 10 mils, 4 to 6 mils, 4 to 8 mils, 5 to 10 mils, 6 to 11 mils, 9 to 29 mils, 50 to 250 mils, 100 to 400 mils, 170 to 600 mils, 260 to 832.2 mils, 900 to 1150 mils, range of scales, scales graduated in seconds, 6 to 28 seconds, 16 to 50 seconds, 20 to 54 seconds, 35 to 75 seconds, 72 to 84 seconds, 90 to 105 seconds, range of scales, scales graduated in yards, 1 to 4 yds, 2 to 10 yds, 3 to 12 yds, 6 to 25 yds, 30 to 60 yds, 35 to 75 yds, 3500 to 12500 yds, 8700 to 19000 yds, 9600 to 21000 yds, 12500 to 27000 yds, 16000 to 30000 yds, range of scales; w/matte surface for pencil corrections; w/case

82621 Series Parts

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Graphical Firing Scale

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8262148 Cross Reference